NYSSA, OREGON

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Monthly
Mean Max. Temperature (F) 34.5 43.7 55.7 64.9 73.3 82.0 90.6 89.8 79.0 65.8 47.8 36.0 63.6
Highest Mean Max. Temperature (F) 42.3 51.6 64.3 74.1 82.0 90.8 96.0 95.8 86.5 75.1 54.7 44.1 96.0
Year Highest Occurred 1998 1995 1992 1987 1992 1986 1985 1971 1990 1988 1999 1977 1985
Lowest Mean Max. Temperature (F) 23.0 27.1 48.2 55.9 66.5 75.6 80.0 82.5 70.6 60.3 37.3 19.4 19.4
Year Lowest Occurred 1979 1989 1993 1975 1977 1993 1993 1976 1985 1981 1985 1985 1985
Mean Temperature (F) 27.9 35.0 44.3 52.0 60.1 68.1 75.2 73.8 63.3 51.6 38.6 29.2 51.6
Highest Mean Temperature (F) 35.4 41.5 49.7 57.8 65.5 74.8 80.0 78.5 70.3 58.8 43.7 37.6 80.0
Year Highest Occurred 1978 1995 1992 1987 1992 1986 1998 1971 1990 1988 1983 1977 1998
Lowest Mean Temperature (F) 14.7 17.8 38.3 45.6 55.4 63.3 67.0 68.6 56.9 48.0 29.0 13.4 13.4
Year Lowest Occurred 1979 1989 1976 1975 1977 1993 1993 1976 1985 1981 1985 1985 1985
Mean Min. Temperature (F) 21.3 26.2 32.8 39.0 46.8 54.2 59.8 57.7 47.5 37.4 29.4 22.3 39.5
Highest Mean Min. Temperature (F) 30.2 32.7 37.4 43.2 50.9 60.5 65.1 61.2 54.0 42.5 36.4 31.0 65.1
Year Highest Occurred 1981 1983 1983 1990 1987 1977 1975 1971 1998 1988 1983 1977 1975
Lowest Mean Min. Temperature (F) 6.4 8.4 26.8 35.2 44.2 50.9 54.0 53.3 42.4 34.4 19.3 7.4 6.4
Year Lowest Occurred 1979 1989 1976 1982 1977 1993 1993 1985 1971 1985 1993 1985 1979
Mean Precipitation (in.) 1.31 1.10 1.01 0.90 1.03 0.80 0.34 0.35 0.56 0.62 1.19 1.38 10.59
Highest Precipitation (in.) 2.70 3.53 2.59 3.39 3.50 1.94 1.91 1.88 2.11 1.99 2.61 4.69 4.69
Year Highest Occurred 1998 1986 1993 1978 1998 1984 1997 1979 1980 1982 1981 1983 1983
Lowest Precipitation (in.) 0.08 0.09 0.10 0.17 0.02 0.06 0.00 0.00 0.00 0.00 0.24 0.05 0.00
Year Lowest Occurred 1985 1988 1994 1987 1971 1994 2000 2000 1999 1988 1989 1989 2000
Heating Degree Days (F) 1150. 842. 642. 394. 182. 53. 7. 11. 130. 417. 793. 1112. 5733.
Cooling Degree Days (F) 0. 0. 0. 3. 28. 146. 324. 282. 78. 1. 0. 0. 862.

Western Regional Climate Center, wrcc@dri.edu